Mune yakagadzirira-yakavhenganiswa mongwe, iyo yekuwedzera huwandu hwein cellulose ether yakaderera kwazvo, asi inogona kuvandudza zvakanyanya kuita kwekunyorova kwemotokari, uye inowedzera inowedzera inokanganisa kuita kwekuvaka kwemutumbi. Kusarudzwa zvine musoro kwe cellulose ana vana akasiyana siyana, zviyero zvakasiyana, madhigirii akasiyana emisangano uye akawedzera huwandu huchabatsira pakuvandudzwa kwekuita kweiyo yakaoma poda.
Parizvino, zvakawanda masonry uye kupururudza motsi ane basa rekuchengetedza mvura, uye mvura slurry ichaparadzaniswa mushure memaminitsi mashoma ekumira. Kuchengetwa kwemvura kukosha kwekuita methyl cellelose ether, uye zvakare chiitiko icho vazhinji vemugadziri veimba vanogadzira mauto, kunyanya avo vari munzvimbo dzekumaodzanyemba vane tembiricha dzakakwirira, teerera. Zvinhu zvinokonzeresa kudzokorora kwemvura kwekuomesesa musanganiswa musanganiswa unosanganisira huwandu hweMC yakawedzera, iyo viscosity ye mc, iyo yakajeka yezvikamu uye tembiricha yenzvimbo yekushandisa.
1. Pfungwa
Cellulose ether is a synthetic polymer yakagadzirwa kubva kune yakasikwa cellerse kuburikidza nemakemikari kugadziridzwa. Cellulose ether ndiyo inobviswa kwemasikirwo cellulose. Iko kugadzirwa kwe cellulose ether kwakasiyana nePolythetic polymers. Yayo yakakosha zvinyorwa ndeye cellulose, iyo yakasikwa polymer yakaenzana. Nekuda kwekuva kunyanya kwechimiro chemasangano cellulose, cellulose pachayo haina kugona kuita nevamiriri evaera. Nekudaro, mushure mekurapa kwekuzvimba kwekuzvimba, iyo yakasimba maHydrogen maketani uye ngetani dzinoparadzwa, uye kuburitswa kweiyo hydroxyl boka rinova alkali alkali alkalal. Tora cellulose ether.
Zvivakwa zveCellulose anaTers vanovimba nerudzi rwevanhu, nhamba uye kugoverwa kwevatsidzike. Kugadziriswa kwe cellulose ana vana zvakare kunoenderana nerudzi rwevatsidzi, degree rekutsva, solubility uye zvinoenderana nekushandisa zvivakwa. Sekureva kwerudzi rwevatsidzi pane caomlecular cheni, inogona kugovaniswa muMonether uye yakasanganiswa ether. Isu tinowanzo shandisa mc seMonether, uye PMC yakakanganisika ether. MetHyl Cellulose ether MC ndiyo chigadzirwa mushure meiyo hydroxyl boka pane glucose unit yemusango cellows inotsiviwa nedunhu. Icho chigadzirwa chakawanikwa nekutsiva chikamu cheiyo hydroxyl boka pane iyo unit neiyo nzira yeboka uye chimwe chikamu chine hydroxyprupropropyl group. Iyo formula yekugadzira ndeye [c6h7O2 (o) 3-mn (och2ch (och2ch (och2ch (och3) ch3]
Panyaya yekugadzirisa, inogona kukamurwa kuita ionic uye isiri-ionic. Mvura-yakashata isiri-ionic cellery ana ana ana ana inonyanya kuumbwa nenhevedzano maviri eAlkyl yeAlkyl uye hydroxielinkyl anaiters. Ionic cmc inonyanya kushandiswa mu synnthetic inodzika, machira ekudhinda uye kunyepa, chikafu uye kusaongorora kwemafuta. Non-Ionic MC, PMC, HEMC, etc. Izvo zvinonyanya kushandiswa muzvivakwa zvekuvaka, mishonga yezuva nezuva, yemitambo inogara mumiririri, STabilizer, inopararira uye yemafirimu ekugadzira mumiririri.
2. Kuchengetwa kwemvura kwe cellulose ether
Kuchengeta kwemvura kwe Cellulose Etetera: Mukugadzirwa kwezvinhu zvekuvakisa, kunyanya kuomeswa poda dowuru, kunyanya mukugadzirwa kweanokosha motsi (yakagadziridzwa muto), chinhu chakakosha uye chakakosha chinhu.
Basa rakakosha remvura-solulable cellulose ecther vanonyanya kuve nematanho, imwe yakanakisa mvura, iyo iri pesvedzero yekuenderana uye yechitatu kudyidzana neiyo simende. Iyo yekuchengetwa kwemvura yemubatanidzwa ether inoenderana nemvura yekunyura kweiyo chigadziko cheshuwa, kuumbwa kweiyo dhudzi, iyo mvura yekudonha, uye nguva yekuisa yemvura. Kuchengetwa kwemvura kwemasero ether pachayo kunobva pane iyo solubility uye kushomeka kwemheremalose ether pachayo. Sezvo isu tese tinoziva, kunyangwe iyo cellulose molecular ine huwandu hukuru hwe hydratable hydratable yeHydratable yeHydratable
Iko kugona kwehydration yeiyo hydroxyl mapoka chete hakuna kukwana kuvhara iyo yakasimba hydrogen zvisungo uye van der waals mauto pakati pemamorikisi. Naizvozvo, zvinongotsvaira asi hazvipfuuri mumvura. Kana iyo substituent ikasvitswa mumatehwe echinyakare Iyo yakakura iyo isiriyo, iyo yakakura chinhambwe pakati pemamorekuru. Kureba kwacho. Mhedzisiro yakakura yekuparadza maHydrogen zvisungo, iyo cellulose ether inova mvura-solulable mushure meCellulose LATTE uye mhinduro inopinda, inogadzira mhinduro yepamusoro-viscosity. Kana tembiricha ikasimuka, hydration yePolymer inopera simba, uye mvura pakati pemaketani inodzingwa. Kana iyo yekushomeka mhedzisiro yakaringana, mamorekuru anotanga kuunganidzwa, achigadzira matatu-matatu emhando network network gl uye akapetwa kunze. Zvinhu zvinokanganisa kuchengetwa kwemvura kwerudzi zvinosanganisira vhiza ye cellulose ether, iyo mari yakawedzera, iyo yakajeka yezvikamu uye tembiricha yekushandisa.
Iyo yakakura iyo visikopa yemasero e cellulose ether, iri nani kudzokorora kwemvura. Viscosity izimendi yakakosha yeMC kuita. Parizvino, akasiyana maMC anogadzira anoshandisa nzira dzakasiyana uye zviridzwa kuyera iyo visikopa yeMC. Nzira huru dziri kuregera rotovisko, hooppler, ubbelohde neBrookfield. Nezve chigadzirwa chimwe chete, iwo mavhisipa anowana nzira dzakasiyana dzakasiyana-siyana dzakasiyana, uye vamwe vakatove misiyano yakawedzera kaviri. Naizvozvo, patinofananidza viscosity, chinofanira kuitwa pakati penzira dzakafanana bvunzo, kusanganisira tembiricha, rotrist, nezvimwe.
Kazhinji, iyo yepamusoro viscosity, iri nani kuchengetedza kwemvura. Nekudaro, iyo yepamusoro viscosity uye yakakwira iyo smecular uremu hweMC, kuderera kunoenderana mukushushikana kwayo kunokanganisa kusasimba kwekusimba uye kwekuvaka kwemutya. Yakakwira iyo viscosity, zvakanyatsojeka zvinokanganisa mudhaka, asi haina hukama zvakananga. Iyo yepamusoro iyo viscosity, iyo yakawanda viscous iyo mongwe yakanyorova, iri panguva yekuvakwa, inoratidzwa sekunamatira kune iyo scriper uye yakanyanya kuderera kune substrate. Asi hazvibatsiri kuwedzera simba rekuumbwa kweiyo yakanyorova dhaka pacharo. Munguva yekuvaka, kuita kwekurwisa-sag hakusi pachena. Pane kusapindirana, imwe yepakati uye yakaderera viscosity asi yakagadziridzwa methyl cellal celler maserimita kuita mukuvandudza simba rerudzi rwemutengesi.
Iyo yakakura huwandu hwe cellulose ether yakawedzerwa kune durari, iri nani kuchengetedza kwemvura, uye yakakwira viscosity, iri nani pakuita kwemvura.
Nezve size size, iyo yakanakisa iyo chidimbu, chiri nani kuchengetwa kwemvura. Mushure mekunge zvikamu zvizhinji zve cellulose ether kusvika mukusangana nemvura, pamusoro pazvo zvinopera uye zvinoumba gel kuputira zvinyorwa zvekudzivirira mamorekuru kuti uenderere mberi nekuenderera mberi. Dzimwe nguva hazvigone kugadzikana pamwe nekunyungudutswa kunyangwe mushure menguva refu kusimudzira, kuumba makore ekuwedzera furccucleent solution kana kuunganidzwa. Zvinokuvadza zvakanyanya kuganhurirwa kwemvura kwe cellulose ether, uye solubility chimwe chezvinhu zvekusarudza cellulose ether.
Fineness zvakare ndiyo yakakosha performance index ye methyl cellelose ther. Iyo MC inoshandiswa kuomarara poda inodiwa kuti ive poda, ine yakaderera mvura yezvinyorwa, uye iyo yakanaka zvakare inoda 20% ~ Iyo fineess inobata iyo solubility ye methyl cellelose ether. Coarse MC kazhinji, uye zviri nyore kunyungudika mumvura pasina kuunganidzira, asi iyo yekunyungudika inononoka, saka haina kukodzera kushandiswa mune yakaoma muhombodo muhombe. Mune yakaoma Powder Dorar, MC inopararira pakati pekusimbisa zvinhu zvakadai sekuunganidza, Filer Filer uye simende, uye chete hupfumi hwakakwana hunogona kudzivirira methyl cellulose ether agglomeration kana kusanganisa nemvura. Kana MC anowedzerwa nemvura kuti azungunuke iyo aglomirates, yakaoma kwazvo kuparadzira nekunyungudika.
Coarse fineeness ye mc haina kungosimbaradza, asi zvakare inoderedza simba remunharaunda romutema. Kana doro rakaoma rakadaro riri munzvimbo yakakura, kurapa kwekurapa kweiyo nzvimbo yakaoma yePowder yePowa ichave yakaderedzwa zvakanyanya, uye matsaula ichaonekwa nekuda kwekuporesa kwakasiyana. Kune iyo durwe rakakwenenzverwa nekuvaka muchina wekuvaka, izvo zvinodiwa kuti zvifeke zvakakwira nekuda kwenguva pfupi yekusanganisa. Iyo yakajeka yeMC zvakare ine chekuita nezvokuita kwavo kuchengetwa kwemvura. Kazhinji, kuti methyl cellalose ana ana dencosity imwe chete asi yakasiyana-musina medu, pasi peiyo imwe mari yekuwedzera, iyo yakanakisa iyo inoyera iyo iri nani iyo yekuchengetedza mvura.
Kuchengetwa kwemvura kweMC kunoenderana ne tembiricha inoshandiswa, uye kuchengetwa kwemvura methyl cellulose theri kuderera nekuwedzera kwekushisa. Nekudaro, mune chaiyo yekunyorera zvinyorwa, yakaoma poda inowanzoiswa kune inopisa subrates yekupisa Kuderera kwehuwandu hwekuchengetwa kwemvura kunotungamira kumanzwiro ari pachena kuti zvose zvinoshanda uye kupenga kuramba kwakanganiswa, uye zvinonyanya kutsoropodza kuderedza simba rekushisa pasi pemamiriro ezvinhu aya.
Kunyangwe methyl hydroxyll cellowset ether inowiriranwa parizvino iri pamberi pekuvandudza tekinoroji, kuvimba kwavo kwekushisa kwekushaiwa simba rekuita kweiyo yakaoma poda. Kunyangwe huwandu hwe methyl hydroxyll cellenchers Kuburikidza nedzimwe nzira yakakosha paMC, sekuwedzera huwandu hwekuregererwa, nezvimwe, iyo yekuchengetedza mvura inogona kuchengetedzwa pakupisa kwakanyanya, kuitira kuti inogona kupa zviri nani kuita mamiriro ezvinhu ane hutsinye.
Kutumira Nguva: Mar-04-2023